I finally decided to abort the clock exchange in the Proceed CDD transport.
I saw a wire coming from the crystal going all the way over the main board to a CY2292 IC. Also close to that is a can type oscillator part# Madrigal 810006.
The owners manual states:
"Using a custom-made crystal oscillator with better
than five part-per-million accuracy, the digital signal is reclocked immediately be-
fore the output, eliminating transport-related jitter from the digital audio signal.
This same crystal oscillator controls the all-digital servo used to control the rate
at which the disc spins."
Well, well the CY2292 is not really a low jitter device. In absence of any schematic I gave up.
I cleaned and lubbed the drawer rails.
And also after building all together again I ran into an awkward drawer problem.
On closing it opens halfway so playing is impossible.
After trying all possible resets unsuccessfull I got really mad and jammed the tray in. Then I let it it play 10 minutes which appeared to be normal.
After that open and close of the drawer was normal.
I dunno what caused it, finneky software??
I do not recommend this transport. My Proceed PCD3 with my own clock sounds less "flat".